SchemaHero is a Kubernetes Operator that manages database schema migrations as code. You can create a table and then modify the table, columns, indexes and other properties by editing the table definition. SchemaHero handles the process of comparing the desired schema to the running schema and then building and executing SQL statements to migrate.

PostgREST is a standalone web server that turns your PostgreSQL database directly into a RESTful API. The structural constraints and permissions in the database determine the API endpoints and operations.

Dotmesh captures snapshots from stateful Docker and Kubernetes applications as ’datadots‘, and gives you the ability to label, store and share them as you would with version-controlled code. Dotmesh is an open–source primitive that can be accessed via CLI or API.

Citus turns Postgres into a distributed database. It enables you to transparently shard your data across multiple Postgres instances, then provides multiple executors to query across your entire dataset.
The result is that you can seamlessly scale out Postgres and still have all the great features that PostgreSQL provides.